Tank heater



nu l 2. m R m A s m R l n V M m S Y m N s im ilrw m mw /f//f m R w M. N #7% wv.% N xm f 0M c m m -Jv m m w. n mm A l., H. T um I 1| .Il .Wwf N .Hl NY 3J O a. 2 NX, w i 7, 1 NNN. .|v. S u E J s 5 um 09B H W .July 17, 1923,

H. LOCKHART 2l Sheets-She'ei; 2

Vza"

NVENTUR.

ATTORNEY.

' Patented July 17, 1923.

UNITED vSTATES PATENT OFFICE.

HOWARDLOOKHART, OE EALLs CITY, NEBRASKA, AssroNoR To EMMA L. VERNON, oF

AKRON, COLORADO. i l

TANK HEATER.

Application led March 3, 1921. Serial No. 449,447.

To all 'whom it may concern v Bc it known that ll, HOWARD LOOKHAET, citizen of the United States, residing 'at Falls City, in the county of Richardson and 'State of Nebraska, have invented certain new and useful Improvements in Tank Heaters, of which the following is a speciv iication.

`*This invention relates to new and useful improvements in tank heaters and more. particularly to the type designed to be sub.

merged in a body of liquid for heating the same.

An important object of the invention is to providev a heater of the above type embodying `a construction and arrangement rendering it comparatively simple to feed -fuel to the device and remove ashes and other accumulations therefrom..

Another important object of the invention is to provide a device wherein water backs are disposed in the path of heat yensuing from the fire within the device.

Other objections and advantages Of 'the invention will become apparent in the course of the following description.

In. the accompanying drawings forming a part of this application and wherein like numerals are employed'V to designate like parts throughout the several views,

Figure 1 is a vertical section through the ydevice showing the same submerged.

Figure 2 is a fragmentary horizontal section taken on the line 2 2 of Figure 1.

Figure 3- is a similar view ktaken on the line 3-3' of Figure 1 and 1 Figure 4 is a'perspectiveview of one of the water backs employed in the device.

Figure 5 is a detail view illustrating a modified connection of the chimney.

Referring now to the drawings wherein for the purpose of illustration is shownA the i preferred embodiment of my invention, the numeral 5 indicates j the tank heater 'in yits entirety and which consists o'ffa body portion 6 which is here shown as being substantially rectangular in configuration, but it is of course to be understood that any other shape may be employed. This body portion consists of top 7'. ends 8, sides 9 and a bottom 10 which is adapted to rest upon the bottom of a tank 11 or other receptacle containing a liquid.

One end 8 of the 'body portion is open and provided with an upwardly inclined chute 11 which extends asubstantial distance above the top of the body portion to be disposed above the level ofk the water placed inthe receptacle or tank to be heated.

rlhe top of this chute is equipped with a', hinged vcover 12 which is provided with an air intake opening 13 controlled by a damper or hinged lid 14 pivoted to the cover 12. It will, of course be understood that bothy the cover 12 and thedamp'erllf may be opened or closed at will. It is also to be noted that the bottomof the chute 11 adjacent the body portion of the heater is arcuated as at 15 to provide'a'slide. for a purpose which will be hereinafter `eK-V plained. A horizontal grate 16 is positioned within the body portion of the deviceandfis arranged a substantial distance from the bottom thereof to divide the body portion into a combustion chamber 17 thereof and anash pit or chamber 18 below the grate. c

A door 19 which when closed is arranged vertically is pivotally connected at its lower end as at 2O to ythe end of thegrateadjacent the lchute 11. The upper end ofthis .v

door isfadapted to slightly engage' the top of the bodyk portion 7 at its juncture'with the top or relative. upper portion of the chute when the door is arranged in a. closed position. f

In order that the door may be easily conl trolled from theupper end of the chute, the rod 21 has one end pivotally, connected to the relative upper end of the door, while the opposite end of the rod lextends to a point adjacent the cover of the chute and'is adapted to rest upon the inclined bottom of the chute as is clearly shown in Figure 1. To retain the door 19 in a closed position and to prevent the same from accidently l,

swinging open, Ameans in the `form of 'an upstanding lug22 is formed upon the inclined bottom ofthe chute adjacent theupper endthereofwhereby the free end' of the rod 21 may abut thesame. .When it isfdesired to feed freshfuel tothegrate' or "lire, the cover 12 of the chute `is'raised to permit access to be had to the rod 21., The free end of this rod is moved to disengage ther same from the lug 22 an'd'is. pulled outwardly of the open end of the chute thereby causingl thedoor 19 tot swinguoutwardly of the body portion rinto the chute until the upper end of the door rests upon the inclined bottom of the chute.

is. disposed. horizontallyjwithin the body.

portion above theigrate, yand is secured to the walls yof the. body-` portion in any suitable mannen The bridging-portion of the U-.sha'ped waterback isprovided with an inletnozzlel orl pipe andasimilar outlet 26.4.which projects .through openings in the endS, of the body` portion to admit into and f dischargefrom the water back.

A horizontal partition27 extends entirelyacrossthebody. portion and from end to end thereof, lthe end of the partition 27 adjacent-,the chute. being` angularly disposed c verticallytoprovide an` abutment r28 for the door 19 when the same is arranged ina closed position. This partition,isprovided withan :opening adj acentthe end 8-of-the body.portion. sothat heated, air may be directed f, intothe bodyv portion above the partitionl to: be discharged lthrough a.` chimney 29 communicating with the top of the body portion yadj acent'- the. chute. However, I do..not desire to. limitmyself to the location ofthe chimney with respectto the body portion as itmay be-efiiciently positioned as shown incFigurei 5:1to communicate with the. combustionchamber through vthe end 8 of the body portion. In either event, the chimney is equippedWith a spark arrester 3() and extends well above the level offthe waterbeing heated.-

A.,hinged lid or damper 31 is pivotally connected tov the4 partit-ion adjacent the Opening.,thereiny so astocontrol-the flow therethrough. A rod 32 is pivotally connected to this damper and extends through the-combustion; chamber, andr an opening in thedoorvlQand .intothe chute y11 whereby it.mayv.be conveniently reacl'iedfor operating the.da.mper. This damper it will be noted, is. ,o,f such dimension as to cause the same/tope. inclined-When in a closedposition ,duettoits abutment with the end wall 8.3; Consequently, when the4` chimney 29y is associated .with this endywall. the damper 3l will .act\toefficientlycontrol the .passage of heated air.l thereinto.

A second wa-terback 33 isarranged above the `partition 27and issupportedin a horizontal.p lanethereon.` This water, back is also U-shaped and the free ends of the arms When the door isdn-this open position, as` clearly seen in. Figure l, it will incline downwardlyV to-.

thereof are equipped with nozzles 34 adapted toy extend through the end 8 of the body portion whereby water may pass into the water back and exit therefrom after becoming properly heated.

A relatively small ash pan 35 -is adapted to rest upon the bottom of the body portion beneath the grate to receive ashes and cinders discharged therefrom. This ash pan assumes the form of a scoop having its forward end removed and provided with an upturned portion 36 forming a hookA with which a suitable implement may be engaged for withdrawing the pan from the` ash chamber and through the chute. The arcuated portion of the chute will yserve ,t0 assist-inthey removal of the ash pan.

The foregoing I description and accompanying drawings have reference to what might be considered tobe the approvedor preferredform of my invention. 'I desire it to be;understood that I may make changes in the construction, combination and arrangement of parts, materials, dimensions, etc., .as may prove expedient and fall withinthe scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure byLetters Patent is:

l. In a tanku heater comprising a bodyy portion having a chute communica-ted therewith, a grate in said body portion, a horizontal partition above the grate, a water back arranged directly above the grate, and a second water back supported upon the partition.

2. A tankheater comprisinga body portion havinga chute communicating therewith, a grate.' in said bodyV portion a horizontal .partition above. the grate, a damper hinged to .saidzpartitiom and an. operating rod connected to the dampery and extending into said chute.

3. A .tank heater comprising a-body y'por-- tion having 4a fire box, ahorizontal partitionarranged above'the gratey therein to provide the body'portion withl an upper heat chamberv above.l thev partition, said heat chamber and fire box havingy communication, and damper means for regulating communication betweenk said fire boxqand heat chamber.

4l. A. tank heater` comprising a irebox, apartition therein dividing the f fire. box into upper and lower chambers, said chambers` being., in. communication adjacent. one endv of the re box, ,and ,a ,chinmey rising from. thek fire box at thev otherend thereof.

5. In a tank heater comprising -a body portion, a grate in said bodyrv portion, a watercoilv arranged directly .above the grate anda second 4water coil supported above the firstmentioned coil. y

6. A tank heater comprisingabody portion, a grate in said body portion, a -hori- BSS zontai partition above the grate, and a Water coil arranged directly abo-Ve the partition.

7. A tank heater comprising a body portion, a chute extendingy therefrom, a grate in the body portion spaced from the bottom thereof1 a door hinged adjacent the grate and adapted to be arranged in a ver@ tical position when in a closed position, a

10 rod connected to the door and extending up into the chute and `means in the chute adapted for engagement With the rod to retain the same in a position tor maintain 

